Number Theory 1

2. A method used to find all the prime factors of a number.
3. The GREATEST factor that two or more numbers have in common.
6. A small number that is written to the upper-right of a number and tells you how many times to multiply the number by itself. Example: 32 = 9 The two in this example is the exponent.
8. A number with EXACTLY TWO factors.
10. The answer to a division problem.
12. The LEAST multiple that two or more numbers have in common.
14. The number of dots in an equilateral triangular pattern. 1, 3, 6, 10, 15, ....
15. Rules that let you test if one number is divisible by another, without having to do too much calculation!
16. Two numbers that have ONLY 1 for a common factor (such as 9 and 8).
17. The answer to a subtraction problem.

1. The result (product or answer) when you multiply a number by itself. 32 = 3 x 3 = 9
4. A way of writing long multiplication problems in a simpler way, using exponents.
5. A number with 3 or more factors.
7. The answer to a multiplication problem.
9. An acronym for the order of operations.
11. The answer to an addition problem.
13. The result (product or answer) when you multiply a number by itself three times. 23 = 2 x 2 x 2 = 8